Starting Circuit Cut-Off System Operation - Yamaha R1 Series 2015 Service Manual

EAS30494

STARTING CIRCUIT CUT-OFF SYSTEM OPERATION

If the main switch is turned to "ON" and the " " side of the start/engine stop switch is pushed, the starter
motor can only operate if at least one of the following conditions is met:
• The transmission is in neutral (the neutral switch is closed).
• The clutch lever is pulled to the handlebar (the clutch switch is closed) and the sidestand is up (the
sidestand switch is closed).
The starting circuit cut-off relay prevents the starter motor from operating when neither of these condi-
tions has been met. In this instance, the starting circuit cut-off relay is open so current cannot reach the
starter motor. When at least one of the above conditions has been met, the starting circuit cut-off relay
is closed and the engine can be started by pressing the " " side of the start/engine stop switch.
a. WHEN THE TRANSMISSION IS IN NEU-
TRAL
b. WHEN THE SIDESTAND IS UP AND THE
CLUTCH LEVER IS PULLED TO THE HAN-
DLEBAR
1. Battery
2. Main fuse
3. Main switch
4. Ignition fuse
5. Starting circuit cut-off relay
6. Relay unit (diode)
7. Clutch switch
8. Sidestand switch
9. Neutral switch
10.Start/engine stop switch
ELECTRIC STARTING SYSTEM
12
11
1
2
3
4
6 6
10
5
6
6
a
7
6
9
8
b
11.Starter relay
12.Starter motor
8-13
10